Jar-cap.



E. D. SGHMITT.

JAR GAP.

APPLIGATION FILEI) MAY 10, 1912.

L75,1 $51 Patented 001. 7, 1913.

3 SHEETSSHEET l1 E. D. SCHMITT.

JAR GAP.

APPLICATION FILED MAY 10, 1912.

00 1 9 1 1 D- 0 0 d e t n e t a P 3 SHEETSSHEET 2.

B. D. SCHMITT.

JAR CAP.

APPLICATION FILE-D MAY 10, 1912.

1,75,1 5 Patented 0011.7, 1913.

3 SHEETS-SHEET 3.

"lJNllTElD %TAT ?E% FATENT @FFEQE EDWARD D. SGHMIT'E. 0F BALTHEOBE.MARYLAND, ASIGNOR T0 BUBE FOOD IPBOCESS COMIEANY. 0F BAL'ZIIM' RE.MARYLAND,

A CORPORATION 01'! MARYLAND.

area-oer.

Specification of Letters Patent.

ll atentedfict. t, 12913.

( Applicationfiled may 19, 191-2. Serial No. 696,528.

To all whom it may concern: I

Be it known that l, Enwenn D; SCHMITT, a citizen of the United States,nesiding at Baltimore city, State of Maryland, have invented certain newand useful improvements in Jar-Gaps, of which the following is aspecification,

This inventionrelates in jar caps.

The object of the invention is to provide a cap adapted for use insealing or capping jars in which food products'or other con? tents arecooked, after being hermetically sealed. This necessitates the use of ahard metal cap possessing such rigidity as will enable the flange of thecap to be tightly crimped or bent into locking engagement with thelocking shoulder on the exterinn of the ar.

T- e principal object of the present invention is to rovide aconstruction wherein the cap or closure may be tightly locked to thejar, so as to hermetically seal the same. and to provide with suchconstruction, a means whereby the seal lock may be broken, so that thecap may thereafter be readily removed by hand.

The invention consists in the main, in making the closure in two parts,one a closing member, and the other a securing member or rim, whichlooks the closingm in place and in providingthe securing. naemor rimwith an opening lever which no operates with a peculiar construction ofrim whereby the lever may be readily manipulated to break the seal sothat the rim may to improvements thereafter be removed to reach thecontents of the vessel.

The many advantages will become apparent in following doscri tion.

Referring to t e drawings,-Figure 1 is a perspective view showing thecap. applied. Fig. 2 is a similar View, looking at the cap from adifierent direction. .Fi g. 3-. is a perspective view showing theopening lever in about the position it would assume at the beginning ofthe twisting operation. Fig. 4 is a perspective view showing thescanning rim torn almost through. Fig. 5 is a View showingthe openinglover twisted entirely out of the'secur'ing rim, and the rim in positionto be sprung ed the jar. Fig. 6 is a vertical sectional view of the cap,applied of" the invention the. course of the to the upper portion of ajar, and Fig. 7 is fit one side of the channel portion and in position.on

a group view showing the various parts of the cap, the closingv memberbeing slightly broken away to more clearly show its shape in crosssection.

Referring to the drawings, the numeral 1 designates the jar, providedinteriorly and adjacent to the lip, with an inclined annular surface 2,a rounding head 3 and an exterior locking shoulder .4.

The numeral 5 designates the cap, which comprises a securing rim 6, aclosing memher 7' and a gasket 8 of rubber or other compressiblematerial. The cap is made preferably of tin of heavy weight, and thesecuring rim is provided with a depending flange -9, adapted to becrimped at intervals into looking contact with the locking shoulder 4:,as indicated at 10. The closing member is formed with a solid top 11,and its edge is bent upwardly, laterally, and down ward, to form anannular channel 12 for the reception of the gasket 8. The inner wall 13of the channel inclines slightly inwardly from the upper edge of thechannel portion, asv shown more clearly in Figs. 6 and 7, so that whenthis member is in position on the jar it will rest snugly against theinclined surface 2 thereof, as shown. in

The enter wall 14: of the channel is of such length as to properlyconfine the gasket 8 and the length oifi the wall of course maybe varieas the exigencies of the case may require, to accommodate gaskets ofdifferent thicknesses.

The securing rim 6 is fonmed with an annulaa? channel 15, which, incross section, conforms-generally to the upper part of the channelportion of the closin member, so that when the rim is forced own overthe closing member, the inner wall 116 of the channel portion of the rimwill bear tightly against the Wall 13 of the closing member.

of the I provide an integral opening lever 17, which extends toward thecenter of the closing member when the parts are assembled the ar. Theinner wall of the. channel portion 1 f the rim adjacent to the base ofthe lever may be notched out, providing notches 18, which extend almostto the top of the wall, as shown clearly in Figs. 2, 3 and 7. Thesenotches terminate in points 19 and extend u ward ly toward each other,for a purpose. which Wlll become apparent in the description of theoperation of removing the cap. The upper surface of the rim is providedwith two cutout portions 20 the notches preferably having straightparallel sides and terminating in points 21. These notches are insidethe points of termination of the notches 18,

Q 1' and the outer wall of the channel portion of the securing rim isfurther provided with two substantially vertical notches 22, which is anintegral structure, well adapted for permanently holding the closingmember in place, and in no way interfering with the necessary crimpingof the flange of the securing rim, while at the same tlme, a structureis provided wherein, by the manipulation of the lever 17, a considerableportion of the securing rim may be torn away, thus leaving the rim insuch condition that it can be readily sprung apart and the whole sealremoved.

In operation, the lever is gripped, say by the thumb and fore-finger,lifted and pushed towardthe periphery of the cap and when the back ofthe lever, near the base, engages the point a, as a fulcrum (bettershown in Fig. 3), a tearing twist will result, which will twist themetal at the point 12 until it tears into the notches 20. Furthermovement of the lever will bring it to a position wherein thepoint awill act as a fulcrum for the'next operation which will be a twistingtear that will carry thelever and the integral portion of the rim, intothe notches '22, after having ruptured the'rim at the point 03 and thefinal downward twist will break the lever and its integral part of therim entirely out, leaving the cap in the condition as shown in Fig. 5.In this condition, obviously, the ruptured ends of the rim need only beforced apart sufliciently to disengage the crimped portion of the flange9, from the locking shoulder of the jar, when the jar cap may beremoved.

.The tearing out of the rim leaves the seal in a condition where it maybe readily removed by a slight further manual operation. Theconstruction is one wherein the whole cap may be replaced, less ofcourse the torn away ortion, but this is found sufficientto ma e a verytight temporary seal which may be highly advantageous for use when onlya part of the contents of the bottle or jar has been used, and it isdesired to preserve or keep fresh the remaining or' unused portion.

In re-applying the cap for the temporary seal, it will be at once seenthat when the parts are put in the position shown in Fig. 5, a downwardpressure upon the whole cap will force it back into place upon the jar,due to the wedging tendency of the engagement between the inner surfaceof the inner wall of the securing rim with the surface of the inner wallof the closing member, thereby producing a temporary seal, the tightnessof which will be in proportion to the pressure a V plied.

I have ound in practice that it is a very different matter, if notentirely impossible to tear tin of heavy weight, with a straight tear,and I have therefore contrived the various notches and cut out portionsin the securing rim, so that suflicient leverage is obtained to twistthe solid portions of the rim apart between the notches, producing, asabove su gested, a twisting tear, the effect of whic will be readilyunderstood and appreciated by those skilled in the art. I refer tostiffen and strengthen the opening ever by providing a rib 24:, which ispressed or indented from the under side to the upper side of the lever.

Having thus described my invention, what I claim is:

1. A jar cap having a closing member formed with a gasket holdingchannel.

adapted to receive the lip of'the jar, a securin the c annel portion ofthe closlng member,

said securing rim being provided with an opening lever integral with thelower edge of the inner wall of the channel of the securing rim, bywhich a part of the securing rim may be twisted off to unlockthe seal.

run formed with a channel to receive 2. A jar cap having a closingmember formed with a gasket holding channel to re- .ceive the lip of thejar and a securingrim formed with a gasket holding channel, the

inner wall of which is inclined inwardly, and adapted to receive the lipof the jar, and a securing rim formed with a channel, the outer wall ofwhich is extended to-form a locking flange and the inner wall inclinedto fit the inner inclined wall of the closing member, and an openingleverintegral with the lower edge of the inner wall of the securing rim,by which part of the securing rim may be twisted off to unlock the seal.

4;. A jar. cap havin a closing member formed with a gasket oldingchannel, the inner wall of which is inclined inwardly and adapted toreceive the lip of the jar,

enol securing rim torme with 2:, channel, the enter well oi" which isextended to term a locking flange e116; the inner well inclined to fitthe inner well oi the closing member, said rim being provided withnotches between which the metal of the rim is adapted to he tern. and anopening lever integral with the lower edge of the inner well cf thesecuring rim, whereby the rim between the notches may be twiste apartfor unlocking purpcse 5, A closure fer fiers or bottles comprising sclosing member having: an inner him well, a securing rim fitting overthe en.- nulsr well. of ssi-cl closing member, and an opening leverintegral with the lower of the ennuler well of the securing rim, endextending across the upper face of the closing member, wherewith e partof the securing" rim may be twisted off to unlock the sea-L 6 A closurefor jars or bottles compris ing a closing member having an inner annulerwall, asecuring rim fitting over the en nular well of said closingmember and provided with notches and. an opening lever integral with thelcwer edge of the inner wall of the securing" rim enrolv extendingacross the upper face of the closing member whereby the metal oi the rimbetween the notches may be twisted apart for unlocking purposes.

7. it. closure fer jars or bottles comprising a closing member having aninner ennuler well e securing rim. fitting over the nuler w l of said.closing member, seiai rim being viaied with notches, encl estifienegiopening lever integral with the lower edge of the inner ennulsr well ofthe securing member end extemling across the upper face of the closingmen'ihe-r whereby the metal of the securing rim between the notches maybe tWiStQQi apart for unlocking purposes.

7 8. In. e jar closure, the combination with a bottle er jar, her ing enexterior locking surfsee. e esp comprising at closing member having aninner annular well e securing rim over the inner annular well of theclosing member and having its outer locking engagement or er wellezrtencled to form. with locking surface oi the bottle and its innerwall in engagement with the inner wall. of the closing member saidsecuring member being provided with. notches between which the metal ofthe securing-rim is adepte; to be twisted; apart, said rim beingprovided with an opening lever integral with the lower edge of the innerwall of the securin rim whereby the metal between the DOtfilGS may betwisted apart for unlocking; purposes In testimony whereof. I afdx mysignature in presence 0 two witnesses.

J'Airns L. Gnewronn, TITIAN W. Jonnson.

